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aging as well as her or his own special expertise to select the most appropriate surgical technique. Chronic rhinosinusitis (CRS) disease burden is associated with pulmonary status in asthmatic CRS patients. Asthma-related emergency department (ED) usage is a predictor of asthma-related mortality. We sought to determine whether measures of CRS disease burden are associated with asthma-related ED usage. We prospectively recruited 263 asthmatic CRS patients for this cross-sectional study. CRS burden was measured using the 22-item Sinonasal O